Serving our customers with quality and safety first.
3a
RIGHT-Hand
0.425in. ⁓7/16"
3.925in. ⁓3-15/16"
dished hexagon
0.125in. and 0.140in. ⁓9/64"
0.429in. and 0.439in.
0.249in.
0.076in. first hole and 0.086in. first hole
0.250in. ⁓1/4"
3.500in.
28
3.747in. first hole
iron alloy 660
ams 5731 assn std single material response or ams 5732 assn std single material response
unjf
Unjf
Iron alloy 660
28
3.500 inches
Dished hexagon
0.425 inches
Right-hand
3a
Schedule B number: 7318152000
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
unjf thread series 28 thread quantity per inch 3.500" grip length dished hexagon head style 0.425" thread length right-hand 3a thread class
Nothing similar to this part number was found in our inventory
An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. for items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. for items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.